Ken Nedimyer, director of the Key Largo-based Coral Restoration Foundation, is a hero, says CNN. Nedimyer is working to stave off the collapse of South Florida’s population of elkhorn and staghorn coral, which have died off in catastrophic numbers over the last three decades due to disease, pollution, and climate change. “If coral reefs died completely, coastal communities would be bankrupt, tourism would be virtually gone, a billion people in the world will be impacted,” Nedimyer says in his CNN Heroes feature video. “I started thinking, how can we fix this problem?” To learn more about Nedimyer, his fight to revive coral reefs, and how you can get involved, watch the video below and read “Florida group rebuilds vital coral reefs”.